package java基础;


    public class Main {
        public static void main(String[] args) {
            Integer i1 = 100;
            Integer i2 = 100;
            Integer i3 = 200;
            Integer i4 = 200;
            System.out.println(i1==i2);
            System.out.println(i3==i4);
            Double i11 = 100.0;
            Double i21 = 100.0;
            Double i31 = 200.0;
            Double i41 = 200.0;
            System.out.println(i11==i21);
            System.out.println(i31==i41);
        }
    }

